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Durham City Zoning Code

Article

16 Design Districts

16.1.1. Purpose

Design District standards shall be established to regulate the physical form of specific areas within the community, and implement to the intent within Sec. 4.5, Design District Intent Statements. Design Districts regulate the relationship between buildings and the streetscapeClosed by focusing on mass, scale, and character along the street. Although land uses are regulated, the emphasis is on appropriate buildingClosed placement and massing. They are intended to encourage innovative projects that create human-scaled mixed-use environments.

16.1.2. Applicability

A. General Applicability

1. Standards within this Article shall apply to any property with a Downtown Design District (DD), Compact Design District (CD), or Compact Suburban Design District (CSD) zoning designation and applicable sub-district zoning designations.

2. The DD zoning district and sub-districts shall only be permitted in the Downtown Tier.

B. Applicability of Other Articles

1. Unless exemptions or alternate standards are explicitly established in this Article, all standards and provisions of this Ordinance shall apply to developmentClosed within any Design District.

2. If conflicts exist between the requirements of this Article and other Articles of this Ordinance, the requirements of this Article shall apply.

C. Where a Design District is overlaid by a Historic District Overlay, the standards set forth in Sec. 4.10, Historic District Overlay, shall also apply.

D. Landscaping and Parking

1. For landscaping, buffering, and parking regulations, refer to Article 9, Landscaping and Buffering; and Article 10, Parking and Loading, respectively.

2. Unless otherwise specified within this Article, any landscaping required within this Article shall comply with the general, landscape design, and existing vegetation standards of Article 9, Landscaping and Buffering, including standards within the Landscape Manual.

E. Environmental Protection

For environmental protection requirements refer to Article 8, Environmental Protection. For additional watershedClosed overlay standards, refer to Sec. 4.11, WatershedClosed Protection Overlay.

F. Durham Design Manual

The Durham Design Manual shall be used to provide guidance in complying with applicable Design District standards. Where there is a conflict between the manual and Design District standards, the Design District standards shall apply.

16.1.3. Uses and Density

A. Primary, accessory, and temporary uses shall be in accordance with Article 5, UseClosed Regulations.

B. Ground FloorClosed Residential Uses and Overnight Accommodations

1. For residential uses and guest roomsClosed for overnight accommodations, the finished floor elevation shall be, at any point, at least 30 inches above the adjacentClosed street gradeClosed.

2. Exemptions are as follows:

a. Utilization of the ForecourtClosed Frontage type with a minimum forecourtClosed depth of 10 feet.

b. The uses on the ground floorClosed of a buildingClosed are located at least 20 feet from the street facing façade.

c. Entry areas, such as lobbies, foyers, or common areas.

C. Buildings with One or Two Dwelling Units

1. Nonresidential Requirement

Buildings with one or two residential units shall include a separate, primary nonresidential use within the buildingClosed other than home occupationsClosed.

2. Exemptions

a. In the DD and CD districts, buildings within the S2 sub-district.

b. In the CSD-S2, single-familyClosed and two-familyClosed subdivisionsClosed pursuant to paragraph 16.1.3D, Single-familyClosed and Two-familyClosed SubdivisionsClosed shall be exempt from the above requirement.

D. Single-family and Two-family Subdivisions in CSD-S2

Single-familyClosed and two-familyClosed subdivisionsClosed within the CSD-S2 shall meet the following standards:

1. The developmentClosed shall comply with the densityClosed standards pursuant to paragraph 16.1.3E.3, CSD District DensityClosed Requirements.

2. No minimum lot size shall apply.

3. No minimum side  or rear yardClosed shall apply.

4. No frontage types shall apply.

5. Vehicular access shall be provided to the rear of each lot.

6. Each lot shall maintain a minimum street yardClosed of five feet or comply with the forecourtClosed frontage type build-to zoneClosed requirements.

7. Required Open Space

Open spaceClosed shall be provided as follows:

a. A minimum of 5% of gross area;

b. All open spaceClosed areas shall have a horizontal dimension of at least 25 feet in all directions; and

c. All open spaceClosed areas shall meet the open spaceClosed requirements of Sec. 7.2, Open Space.

E. Residential Density

1. DD District Density Requirement

No minimum or maximum densityClosed requirements shall apply within the DD District.

2. CD District Density Requirements

a. Residential developmentClosed within the CD District shall be in accordance with the following densityClosed requirements:

Sub-Districts

Residential DensityClosed

Max. (units/acre) with Affordable Housing DensityClosed Bonus

Min. (units/acre)

Max. (units/acre)

CD-C

22

60

75

CD-S1

16

53

CD-S2

9

20

CD-P(N)

16

53

 

b. In the CD-S2 sub-district, any projects of 200,000 square feet or greater shall consist of a residential component and comply with the densityClosed requirements above.

c. DensityClosed shall be calculated based upon the entire site acreage, including areas precluded from consideration for densityClosed in Article 8, Environmental Protection.

d. Affordable Housing Density Bonus

(1) Within any sub-district, the maximum residential densityClosed shall be 75 units per acre; provided, that at least 15% of the total number of dwelling unitsClosed in the project qualify as affordable housing dwelling unitsClosed.

(2) Only projects with a minimum of 15 dwelling unitsClosed, or projects adding at least 15 dwelling unitsClosed to an existing developmentClosed, shall be eligible for the affordable housing densityClosed bonuses.

(3) Requirements pursuant to paragraph 6.6.1, General Requirements, shall apply.

3. CSD District Density Requirements

a. Residential developmentClosed within the CSD District shall be in accordance with the following densityClosed requirements:

Sub-Districts

Residential DensityClosed

Max. (units/acre) with Affordable Housing DensityClosed Bonus

Min. (units/acre)

Max. (units/acre)

CSD-C

22

30

Unlimited

CSD-S1

16

21

CSD-S2

9

15

b. DensityClosed shall be calculated based upon the entire site acreage, including areas precluded from consideration for densityClosed in Article 8, Environmental Protection.

c. Affordable Housing Density Bonus

(1) Within any sub-district, allowable densityClosed shall not be limited; provided, that at least 15% of the total number of dwelling unitsClosed in the project qualify as affordable housing dwelling unitsClosed.

(2) Only projects with a minimum of 15 dwelling unitsClosed, or projects adding at least 15 dwelling unitsClosed to an existing developmentClosed, shall be eligible for the affordable housing densityClosed bonuses.

(3) Requirements pursuant to paragraph 6.6.1, General Requirements, shall apply.

F. Ground Floor Use Limitations

1. DD District

a. Ground floorClosed frontage of any buildingClosed fronting along the following streets, as depicted in the following map and listed in paragraph (b), Applicable Streets, shall only contain nonresidential uses other than parking, pursuant to Sec. 5.1, Use Table.

(1) The area required for nonresidential uses shall have a minimum interior depth of 20 feet.

(2) Upper storyClosed residential uses can have ground floorClosed access.

b. Applicable Streets

(1) All frontages along Foster Street, Corcoran Street, and Blackwell Street up to the intersection of Jackie Robinson BoulevardClosed;

(2) All frontages along Rigsbee Avenue;

(3) All frontages along East and West Main Street; and

(4) All frontages within and along the Downtown Loop, including Roxboro Street.

2. CD District

Noncommercial uses shall not be permitted on the ground floorClosed of the CUD-P(N) sub-district; however, upper storyClosed residential uses can have ground level access.

16.1.4. CSD-S1 Transitional Use Area (TUA) Major Special Use Permit

A. Transitional Use Area

Within the Support 1 sub-district of the CSD District, developmentClosed within 200 feet of the Patterson Place Compact Neighborhood Tier boundary, except where the Tier boundary abuts ROW), shall require approval of a major special use permit (MSUP) pursuant to Sec. 3.9, Special Use Permit.

B. Exemption

The following shall be exempt from this requirement:

1. Redevelopment of, or additions to, existing developmentClosed so long as no expansion of the limits of disturbance in the TUA is proposed.

2. Public right-of-wayClosed.

C. Criteria for Approval of Major Special Use Permit in TUA

In lieu of addressing the Review Factors in paragraph 3.9.8B for Special UseClosed Permits, Major Special UseClosed permits in the TUA shall require that the applicant demonstrate that the following review factors have been adequately addressed:

1. Environmental Protection

Preservation of tree cover, floodplain, stream buffersClosed, wetlandsClosed, steep slopes, open spaceClosed and other natural features, protection of water quality and wildlife corridors, Durham InventoryClosed Sites, state designated natural heritage elements and related studies.

2. Lighting

Locations of exterior lighting with reference to edge effects and impacts on the adjacentClosed natural areas and wildlife movements.

3. Effects on Nearby Properties

Effects of the proposed use on nearby properties, including, but not limited to, the effects of noise, odor, lighting, and traffic.

4. Conformance with Adopted Plans

Conformance with adopted plans such as the New Hope Creek Open SpaceClosed Master Plan, the Durham Comprehensive PlanClosed, and other applicable city/county policies.

5. Other Factors

Any other review factors which the approving authority considers to be appropriate to the property in question.

 

16.2.1. Building Placement Standards

Unless otherwise specified within the individual frontage or buildingClosed type standards pursuant to paragraph 16.3.2, the following standards shall apply:

A. Build-To Zone

1. Measurement

a. The build-to zoneClosed shall be measured from back-of-curb of each street and provided as follows:

Design District

Build-to ZoneClosed

DD

12-18 feet

CD

12-18 feet

CSD

15-25 feet

 

For sides of property that front along a freewayClosed or other similar NCDOT right-of-wayClosed, the build-to zoneClosed shall be measured from the right-of-wayClosed line and not the back-of-curb.

b. Where the back-of-curb varies along a street, measurement shall be from the back-of-curb closest to the property line.

2. Conflict with Right-of-Way

a. Where at least 50% of the depth of the build-to zoneClosed is within right-of-wayClosed, an additional two feet shall be added to the depth of the build-to zoneClosed.

b. Where right-of-wayClosed encumbers the entire build-to zoneClosed:

(1) The build-to zoneClosed shall be as follows:

Design District

Build-to ZoneClosed

DD

0-4 feet from ROW

CD

0-4 feet from ROW

CSD

0-10 feet from ROW

 

(2) An additional adjustment, of the minimum amount necessary to avoid encroachmentClosed of footings into the street, shall be allowed if demonstrated with a sealed foundation plan.

3. Other Build-to Zone Exceptions

a. Build-to zones shall not apply to alleysClosed.

b. Cornices, eaves, doorway canopies, balconies, and other similar buildingClosed appurtenances can extend out of the build-to zoneClosed.

c. PodiumsClosed, or portions thereof as applicable, can be located out of the build-to zoneClosed to the minimum extent necessary to avoid existing easementsClosed or sight distance triangles.

Commentary:  Any proposed encroachmentClosed into right-of-wayClosed will require compliance with any other applicable codes and an approved legal agreement with the City or NCDOT, as applicable.

B. Percent Placement

For all frontage types, except as specified below, a minimum percentage of the build-to zoneClosed shall be occupied by the building podiumClosed, calculated as a linear measurement within the build-to zoneClosed along the width each street frontageClosed of the developmentClosed site.

Sub-District

Minimum Percent

Core (-C)

80%

Support 1 (-S1)

70%

Support 2 (-S2)

60%

Pedestrian Business (-P(N))

60%

1. Courtyard Frontage Type buildings shall meet the buildingClosed placement standards found in paragraph 16.3.1G, Courtyard Frontage Type.

2. For the ForecourtClosed Frontage Type, the street side of the forecourtClosed shall be used to meet percentage requirements.

3. The percentage can be reduced only to the minimum extent necessary to avoid existing easementsClosed, if required to accommodate emergency vehicleClosed access or service areasClosed, or if otherwise specified in this Ordinance.

4. The percentage can be reduced by up to 15% for developmentsClosed that are required to provide public space pursuant to 16.2.4. to accommodate the public open spaceClosed street frontageClosed requirement.

C. Required Yards

1. For a buildingClosed utilizing a frontage type, no street or side yardsClosed are required.

2. For a buildingClosed utilizing a buildingClosed type, refer to Sec. 16.3, BuildingClosed Design.

3. The required rear yardClosed for any buildingClosed shall be as follows, unless otherwise specified in this Article:

a. For DD-C and DD-S1, no rear yardClosed is required.

b. For DD-S2, a 25-foot minimum is required when adjacentClosed to a residential districtClosed or residential use outside of the DD District.

c. For any CD and CSD sub-districts, a 10-foot minimum rear yardClosed is required.

16.2.2. Pedestrian Passages

A. Minimum Required

1. One passage per every 250 feet of aggregate buildingClosed façade per developmentClosed along a street frontageClosed.

2. Where a developmentClosed includes the middle 50% of a block faceClosed, at least one passage shall be placed within the middle 50% of a block faceClosed.

3. For modifications to existing developmentClosed, at least one passage shall be required:

a. If additional developmentClosed creates at least 25% new buildingClosed frontage along the street and would exceed the 250-foot façade standard, above; or

b. If replacing structures, or portions thereof, with street frontageClosed that is at least 25% of the overall street frontageClosed and exceeds the 250-foot façade standard, above.

B. Types of Passages

1. At least one passage shall be an “exterior” passage. These are either:

a. Between buildings;

b. An open-air tunnel through a buildingClosed; or

c. Through a parking structureClosed.

2. Additional passages can be interior through a buildingClosed.

3. Except in conjunction with parking structures, passages shall not be used for motor vehiclesClosed.

4. A pedestrian mallClosed per paragraph 16.4.3C, Pedestrian MallClosed Standards, shall qualify as a passage.

5. Sidewalks shall not qualify as a passage.

C. Dimensional Standards

1. Passages that do not run through parking structures shall maintain a minimum of twelve feet of clearance in width and height.

2. Parking structureClosed passages shall be designated or marked pathways with a minimum width of six feet.

3. Routes shall be perpendicular to the street frontageClosed with a maximum 15 degree variation to accommodate site or design conditions.

D. Architectural Standards

1. These standards shall apply to passages tunneling through buildings or interior to buildings.

2. Passage entries shall be architecturally distinct by at least two of the following methods:

a. A canopyClosed or awning.

b. A distinctive architectural surround.

c. A change in materials or plane.

E. Lighting

Passages shall be illuminated per paragraph 7.4.3, Standards.

F. Access

1. Pedestrian passagesClosed shall not be blocked, gated, or barredClosed in such a manner to prevent 24-hour public access, except as follows for security purposes:

a. Access to passages after hours of operation; or

b. Access to passages that only serve residential uses (including ancillary uses provided for residents of the developmentClosed, such as but not limited to leasing officesClosed, pools, and fitness facilities).

2. Gates shall have a maximum opacityClosed of 50%.

G. Way-finding

Pedestrian way-finding signage shall be provided throughout the passage route.

H. Inter-Connectivity

Pedestrian passagesClosed shall extend through the site to a right-of-wayClosed or property line.

1. Passages shall either connect to a passage on an adjacentClosed site or opposing right-of-wayClosed, if available; or

2. Provide the ability for an adjacentClosed developmentClosed to connect to the passage.

3. Passages shall not be required to connect to limited access right-of-wayClosed, or active railroad or light rail lines.

16.2.3. Service Areas

A. General Standards

1. Where an alleyClosed is existing or proposed, service areasClosed shall be placed along, and accessed from, the alleyClosed. Where conflicts with utilities, sight distance triangles, pedestrian accessibility, or vehicular and service accessibility exist, placement and access points from public or private streets shall be permitted.

2. No service areasClosed shall be placed along a street frontageClosed unless the developmentClosed site has at least two street frontagesClosed. Vehicular access for structured parking per paragraph 16.3.2, Structured Parking, is exempt from this requirement.

3. Unless the developmentClosed site is bound by right-of-wayClosed on all sides, no service areaClosed shall be permitted along the frontage of the streets in paragraph 16.1.3E.3, Ground FloorClosed UseClosed Limitations.

4. No garage entry for an individual dwelling unitClosed shall be placed within façades along a street frontageClosed. Such garage entries shall be placed along an alleyClosed or common access drive.

5. No frontage type or ground floorClosed glazingClosed requirement shall apply within the extent of the service areaClosed.

6. The service areaClosed can be set back a maximum of 10 feet from the build-to zoneClosed, but shall not be set back more than 40 feet from the back-of-curb. The setbackClosed shall apply only for the width of the service areaClosed.

7. Required sidewalk clear zone per paragraph 16.4.2B, Sidewalk Clear Zone, shall be maintained.

B. Street Frontage Service Areas

If a service areaClosed is placed along a street frontageClosed, the following shall apply:

1. Corners

A service areaClosed shall be at least 20 feet from any buildingClosed corner with street frontageClosed.

2. Maximum Designated Area

a. A maximum of 20% of a façade length along each individual street can be designated as a service areaClosed; or

b. More than 20%, up to a maximum of 40%, of a façade length along only one street can be designated as a service areaClosed, with no other service areasClosed allowed along the other street frontagesClosed.

            

C. Utilities and Solid Waste Facilities

Sec. 7.6, Utility and Solid Waste FacilitiesClosed, shall apply with the following additional requirements:

1. Solid Waste Collection

a. All new developmentClosed, not including structured parking, of 100,000 buildingClosed square footage or greater shall provide trash compactors on site.

b. Where shared solid waste facilitiesClosed exist on sites to be redeveloped, the redevelopment shall continue to accommodate sufficient shared facilities.

c. Sites designed with a trash compactor shall be designed to allow solid wasteClosed collection vehiclesClosed to back into the site. In all other instances, a site may be designed to allow solid wasteClosed collection vehiclesClosed to back into the site. The following criteria shall apply in all instances:

(1) The on-site access location shall allow for a maximum of 40 feet into the site;

(2) Pickup only occurs during off-peak hours, as determined by the Transportation Director or designee; and

(3) The street is not a State-maintained roadClosed.

d. A dedicatedClosed area for the separation, collection, and storage of recyclables shall be provided.

2. Utilities and mechanical equipment

All utilities and associated equipment, and other mechanical equipment serving the site, shall be installed underground or on rooftops, unless:

a. Another applicable code prevents such locations;

b. If documentation from the service provider prohibits such locations; or

c. If equipment is placed outside of public right-of-wayClosed, and is not visible from off-site by placement internal to the site or walled with material consistent with the primary buildingClosed facade.

16.2.4. Public Space

A. Applicability

1. Unless otherwise specified, public space shall be provided in lieu of the requirements of Sec. 7.2, Open Space.

2. Area developedClosed as required streetscapeClosed shall not be applied to public space requirements.

3. Public space shall be provided as follows:

a. In DD and CD Districts, public space shall be provided for developmentClosed of at least 80,000 square feet of buildingClosed square footage on 3.5 acres or more.

b. In CSD Districts, public space shall be provided for developmentClosed of at least 50,000 square feet of buildingClosed square footage on two acres or more.

4. Pedestrian mallsClosed pursuant to paragraph 16.4.3C, Pedestrian MallClosed Standards, shall qualify as required public space.

5. Surface parking shall not be placed between public space and a proposed buildingClosed.

B. Ownership, Management, and Accessibility

The requirements pursuant to paragraph 7.2.5, Ownership and Management of Open SpaceClosed, shall apply.

1. Public space shall be maintained for public access even if under private ownership. An easementClosed to maintain public access shall be required.

2. Public space shall be handicap accessible.

3. Maintenance of public space, if privately owned, shall be the responsibility of the private entity and not that of the City or County.

C. General Requirements

1. Area and Location

a. Public space shall be provided on the developmentClosed site.

b. Except in the CSD district, a maximum of two public space areas shall be provided.

c. The minimum amount of public space square footage shall be as follows as a percentage of the developmentClosed site areaClosed:

Design District

Minimum Percent

DD

2%

CD

2%

CSD

5%

 

d. Payment in lieu can be provided if such a program has been established.

2. Dimensions

a. The minimum dimension for each public space area shall be 25 feet in all directions.

b. The minimum street frontageClosed width shall be 25 feet.

3. Public Space Amenities
a. Seating

One linear foot of seating for every 100 square feet of public space shall be provided. Ledges and/or walls can be used if the height is 18 to 30 inches high and at least 15 inches deep.

b. Trash/Recycling Receptacles

One set of trash/recycling receptacles per 5,000 square feet, with a minimum of one set, shall be provided.

c. Trees

Two canopyClosed trees per 1,000 square feet, with a minimum of one, shall be provided.

d. Pedestrian Circulation

Pedestrian circulation shall be provided with a paved walkway with a minimum width of five feet.

(1) In DD, brick double-sailor-course banding as required for sidewalks shall be incorporated into each public space walkway to provide a visual connection from the streetscapeClosed to the public space.

(2) Lighting shall be provided for walkways and comply with Sec. 7.4, Outdoor Lighting.

e. Incidental Buildings

Incidental buildings are allowed pursuant to paragraph to 16.3.1I.3.c, Permanent Stands/Kiosks, and as follows:

(1) Total incidental building coverageClosed shall be no more than 25% of the required public space for the site.

(2) The buildings shall be no taller than 15 feet.

(3) The buildings shall not extend in front of primary buildings along street frontagesClosed.

4. Exclusions

a. ForecourtsClosed shall not count towards required public space.

b. Private recreational amenity areas, including but not limited to pools, fitness facilities, lounges and other similar amenities, shall not count towards public space requirements.

c. Rooftops of any type shall not qualify as public space unless approved as an alternative form of complianceClosed pursuant to paragraph 16.2.4D, below or through paragraph 16.2.4C.5, below, for the CSD district.

5. CSD District Public Space Modifications

a. A maximum of 2% of the required public space may be provided through publicly accessible green roofClosed.

b. The required public space shall be provided in a maximum of three public space areas.

c. Any area of storm water mitigation may count towards a maximum of 2% of required public space.

D. Alternative Form of Compliance

An alternative to the size, configuration, or location requirements (as long as it remains on-site) of open spaceClosed may be approved through approval of a minor special use permit pursuant to Sec. 3.9, Special Use Permit. The general findings required for a minor special use permit shall apply, except the following findings shall replace the review factors per paragraph 3.9.8B, Review Factors:

1. That the alternative design shall provide better opportunities to utilize the open spaceClosed than would otherwise be provided;

2. That the alternative design provides better access than would otherwise be provided; and

3. The amenities provided are substantially more than the minimum requirements.

16.2.5. Required Vegetation when Creating Vacant Lots

Any lot that becomes vacant due to demolition, for which a buildingClosed or construction permit has expired or does not exist, shall meet the following standards in addition to any sedimentationClosed and erosionClosed control requirements of paragraph 12.10.4B, Stabilization of Disturbed Land:

A. The lot shall be planted with ground coverClosed, grass or other appropriate landscape material, or covered with hardscape material, and maintained. No bare earth shall remain visible.

B. These actions must be completed within 30 days of demolition or the expiration of a buildingClosed or construction permit, whichever comes last.

16.2.6. External Access

A. Paragraph 12.2.4, External Access Required, shall not apply within the Downtown Design District.

B. Vehicular Access for Double-Frontage Lots

When vehicular access is proposed for both sides of double frontage lots, access points shall be off-set to inhibit cut-through traffic except in the DD District where alternate access points may be allowed as follows:

a. Shall connect at least two public rights-of-way on opposite sides of the blockClosed;

b. Shall be a minimum of 16 feet wide; and

c. Shall be clearly visible to pedestrian and vehicular traffic.

16.3.1. Frontage and Building Types

Frontage types define the interface of the developmentClosed with the streetscapeClosed and public realm. BuildingClosed types regulate massing of the entire buildingClosed along all sides.

A. Applicability

1. Unless otherwise indicated in this Article, buildingClosed design shall utilize either frontage type requirements or buildingClosed type requirements, as permitted.

2. Frontage Type Applicability

a. Frontage types apply to all façades fronting along the following facilities: public and private streets, existing and adopted light rail corridors, common access drives serving multiple parcelsClosed or primary entrances, and public open spacesClosed such as parks, paved trails, and pedestrian mallsClosed.

b. Frontage types shall not apply along alleysClosed, except where there is sole or primary access to a townhouseClosed or detached rowhouse lot, as allowed pursuant to paragraph 16.4.4D.3.

c. Frontage types shall not apply along freewaysClosed and other similar NCDOT right-of-wayClosed.

3. Building Type Applicability

A buildingClosed type shall be applied only in instances specified pursuant to the standards of the specific buildingClosed type.

B. Combinations

A buildingClosed can employ different frontage types, but buildingClosed types cannot be combined.

C. Permitted Frontage and Building Types

Permitted frontage and buildingClosed types are indicated by a “” in the table below.

 

Frontage Type

BuildingClosed Type

Sub-District

Storefront

Arcade

Courtyard

ForecourtClosed

Monumental

Incidental

Accessory

Downtown Design

DD-C

DD-S1

DD-S2

Compact Design

CD-C

--

CD-S1

CD-S2

CD-P(N)

--

--

Compact Suburban Design

CSD-C

CSD-S1

CSD-S2

 

D. Storefront Frontage Type

 

    

1. Description

A structureClosed with façades replicating traditional storefront design.

2. Building Standards

The following standards shall apply to the Storefront Frontage Type.

a. The buildingClosed mass shall be articulated with individual vertical divisions pursuant to paragraph 16.3.5C, PodiumClosed Vertical ArticulationClosed, spaced a maximum of 50 feet apart with a storefront.

b. A storefront window systemClosed shall be used at the ground floorClosed.

c. A primary horizontal articulationClosed shall be made between the ground floorClosed and the upper floors that include a change in material or change in plane.

d. A secondary, tripartite, horizontal articulationClosed shall be made within the ground floorClosed façade (for example: kickplate, storefront, and transom).

e. Ground floorClosed entries shall be level with the adjacentClosed sidewalk and not cause doors to extend into the clear zone of a sidewalk.

f. If entries are recessed:

(1) The recessed area shall be proportionally wider (Y) than they are deep (X); and

(2) The entry can face the street or face the side of the recessed area.

E. Arcade Frontage Type

1. Description

A structureClosed with a recessed ground floorClosed façade that creates a linear passageway parallel to the street, covered by the upper storiesClosed of the buildingClosed which extend within the build-to zoneClosed.

2. Building Standards

The following standards shall apply to the Arcade Frontage Type:

a. The recessed façade at the ground floorClosed, or “arcade,” shall comply with standards for the Storefront Frontage Type.

b. The depth (X) of the arcade shall be a minimum of eight feet and a maximum of 20 feet, measured from 12 feet from back-of-curb.

c. Upper podiumClosed levels shall be located within the build-to zoneClosed.

d. Upper storiesClosed shall be either cantilevered or supported by columns.

e. When columns are used:

(1) Columns shall be placed within the build-to zoneClosed.

(2) Voids between columns shall not be permanently filled in.

(3) A minimum of 65% of the colonnade façade at the ground floorClosed shall be open.

F. Courtyard Frontage Type

 

 

1. Description

A structureClosed with a full height recessed façade for a portion of the buildingClosed frontage where the buildingClosed(s) creates enclosure around an internal void (such as a U shaped buildingClosed footprint).

2. Building Standards

The following standards shall apply to the Courtyard Frontage Type:

a. Dimensional Standards

Requirement

Minimum

Maximum

Required street frontageClosed of the lot (W)

100 feet

Required courtyard width (Z) within build-to zoneClosed

20% of the buildingClosed frontage or 30 feet, whichever is greater

50% of the buildingClosed frontage

Required courtyard depth (Y)

50% of courtyard width (Z) or 30 feet, whichever is greater

Required courtyard width to buildingClosed height ratio (Z:X)

1:2 (width half of buildingClosed height)

2:1 (width double buildingClosed height)

Required courtyard interval (defined as wing, courtyard opening, and wing)

200 feet

 

b. Courtyard openings shall not be placed on blockClosed corners.

c. Primary or Main Entrances

Primary or main entrancesClosed:

(1) Shall be spaced at a maximum of 150-foot intervals along the frontage; and

(2) Can be located in the courtyard instead of, or in addition to, entrances at the street.

d. Courtyard amenities

When a developmentClosed project does not have required open spaceClosed per paragraph 16.2.4, Open SpaceClosed, the following shall be provided:

(1) One understory or canopyClosed tree per 1,000 square feet of courtyard shall be provided, with a minimum of one tree.

(2) Seating shall be provided at a rate of one linear foot per 100 square feet of courtyard, with a minimum of two seats. Ledges and/or walls can be used if the height is 18 to 30 inches high and 15 inches deep.

 

G. Forecourt Frontage Type

1. Description

A structureClosed with façades that are separated from the sidewalk and/or street by a small forecourtClosed.

2. Uses

ForecourtsClosed shall only be used for:

a. Dwelling unitsClosed designed at ground floorClosed along the street frontageClosed; or

b. Guest roomsClosed for overnight accommodations designed at the ground floorClosed along the street frontageClosed.

3. Building Standards

The following standards shall apply to the ForecourtClosed Frontage Type:

a. Placement

(1) The required forecourtClosed shall be established 12 feet from back-of-curb. If that placement is within right-of-wayClosed, the placement shall be adjusted to the right-of-wayClosed line.

(2) The forecourtClosed may be established further than 12 feet only to the amount necessary to avoid encroachmentClosed into right-of-wayClosed or an existing easementClosed.

b. Depth

The minimum depth shall be five feet and the maximum shall be 12 feet.

c. Fence or Wall

(1) A minimum two-foot-high fence or wall is required at each forecourtClosed frontage along a street or other facility per paragraph 16.3.1A.2, Frontage Type Applicability, and shall comply with the provisions of Sec. 9.9, Fences and Walls.

(2) The fence or wall shall be required for at least 60% of the forecourtClosed frontage.

d. Access

(1) Each forecourtClosed shall provide either primary or secondary entrances, in addition to entrance requirements per paragraph 16.3.4, BuildingClosed Access. If a forecourtClosed spans more than one dwelling unitClosed, each individual dwelling unitClosed shall have an entrance to the forecourtClosed.

(2) External access to the forecourtClosed from the street shall be required at a minimum rate of one per 250 linear feet of or portion thereof.

e. Amenities

(1) At least three of the following shall be provided within the forecourtClosed for every 50 linear feet of forecourtClosed frontage, or portion thereof. Any two of paragraphs (a) through (c) below can be combined as long as dimensional standards are met for each item.

(a) Seating – One linear foot for every 100 square feet of forecourtClosed, with a minimum of two seats. Ledges and/or walls can be used if the height is 18 to 30 inches high and at least 15 inches deep.

(b) Raised planters (minimum planting area of 10 square feet) and/or an ornamental tree. These shall not count towards street tree requirements.

(c) A fence or wall two to four feet in height, parallel to the buildingClosed face to create defined spaces.

(d) A trellis or tensile canopyClosed (not retractable) with a depth of at least 75% depth of the forecourtClosed.

(2) Within the S1 and S2 Sub-districts

ForecourtsClosed within the S1 and S2 sub-districts shall also provide the following landscaping within the forecourtClosed:

(a) Landscaping shall be provided at a minimum of 25% of the court area.

(b) Landscaping shall consist of raised planters with a minimum planting area of 10 square feet and/or in-ground landscaping consisting of shrubs or understory trees.

(c) Landscaping can be used to satisfy the requirement of paragraph e(1), above.

(3) Planters provided for forecourtsClosed serving individual dwelling unitsClosed shall be built-in or secured to the ground.

H. Monumental Building Type

    

1. Applicability

This BuildingClosed Type can be utilized for public or private developmentClosed with a qualifying use as listed below.

2. Qualifying Uses

a. Monumental BuildingClosed Types can be used for only the following primary uses:

(1) Auditorium;

(2) City Hall or County Administration Complex;

(3) Courthouse;

(4) Library;

(5) MuseumClosed;

(6) Passenger terminal;

(7) Place of worshipClosed;

(8) School, elementary, middle, or high; or

(9) TheaterClosed.

3. Building Standards

a. The minimum setbackClosed from the right-of-wayClosed shall be 20 feet.

b. The minimum side yardClosed shall be 20 feet on each side.

c. A minimum street frontageClosed of 200 feet shall be required. For developmentsClosed with multiple street frontagesClosed only one frontage shall be required to meet the minimum.

d. The following architectural standards shall apply:

(1) When provided, punched windows shall be a minimum of two feet wide by four feet tall.

(2) The primary entrance shall be located on the front façade and shall face the street yardClosed along the primary public or private street frontageClosed. The front façade shall be clearly defined and have a greater level of architectural expression and articulationClosed than the remaining façades.

(3) The primary entrance shall be articulated as a major component of the main façade.

(4) Primary buildingClosed materials shall consist of brick, cast in place concrete or pre-cast concrete panels, glass, metal, and/or stone.

4. Front Facade Street Yard Standards

The front façade street yardClosed shall meet the following requirements:

a. It shall be no more than three vertical feet higher than sidewalk gradeClosed at the street frontageClosed for a minimum depth of five feet, measured from the property line at the right-of-wayClosed.

b. It shall have a minimum depth of 20 feet from the back-of-curb, extend a minimum of the length of the buildingClosed along the street frontageClosed, and be comprised completely of landscaping and hardscaping as described below.

c. A minimum of 30% of the street yardClosed area shall be comprised of hardscaping and shall include the following:

(1) The entire hardscaped area shall be covered with modular pavers, decorative concrete, or stone paving.

(2) A minimum of one “element of interest” (i.e., fountain, art, clock, etc.) shall be provided.

(3) One linear foot of seating per 40 square feet of hardscaped area shall be provided.

(4) One trash and one recycling receptacle per 5,000 square feet of hardscaped area shall be provided.

d. A minimum of 30% of the street yardClosed area shall be comprised of landscaping and shall include the following:

(1) One 2 ½-inch caliperClosed tree per 1,000 square feet of landscaped area shall be required; and

(2) No more than 50% of the landscaped area shall be lawn. The remainder of the area shall be planted with trees, shrubs, perennials, and/or annuals.

e. It shall not be blocked, gated, or barredClosed in such a manner to prevent 24-hour public access.

I. Incidental Building Type

1. Description

Incidental buildings are primary structures that, due to size and/or use, frontage types would not be appropriate, as prescribed below.

2. Standards

a. Except for permanent sales stands/kiosks and rail signal/utility sheltersClosed or cabinets, if other structures than those indicated below are located on the developmentClosed site, then those structures indicated below shall be considered accessory structures and not incidental buildings.

b. No glazingClosed requirements shall apply.

3. Types of Incidental Buildings
a. Park and Urban Agriculture Buildings

(1) Park buildings (restrooms, sheltersClosed, and other similar structures) and urban agriculture buildings (greenhouses, including hoop houses of similar size to greenhouses, tool/storage sheds, and other similar structures) shall have a minimum setbackClosed of 20 feet from the street right-of-wayClosed, and a minimum setbackClosed of five feet from all other property lines. SetbacksClosed shall be increased to accommodate emergency vehicleClosed access, if required.

(2) The maximum height shall be one storyClosed.

b. Rail Signal Shelters

(1) Rail signal sheltersClosed shall be located in railroad right-of-wayClosed unless documentation is presented to the Planning Director or designee that the shelterClosed must be placed outside of the right-of-wayClosed and there is no alternative.

(2) If sheltersClosed are placed outside of railroad right-of-wayClosed, the following shall apply:

(a) SheltersClosed shall be of a uniform weather-resistant material of either aluminum or steel kept in a metallic appearance; or

(b) If a different weather-resistant material or appearance is used, or if the shelterClosed is placed within the streetscapeClosed, the shelterClosed shall be screenedClosed or covered by public artClosed that received a recommendation of approval by the Durham Arts Council Committee.

(c) The location of the shelterClosed shall not conflict with any required streetscapeClosed amenities and shall maintain required clear zones.

c. Permanent Stands/Kiosks

Commentary:  Additional permits and license agreements may be required to use the public sidewalk.

(1) The maximum size of each stand or kiosk shall be 50 square feet, unless located within public space pursuant to paragraph 16.2.4C.3, Public Space Amenities.

(2) If located within public sidewalks or other public or private pedestrian walkways, required clear zones shall be maintained.

(3) Design Standards

The integrity of the stand or kiosk shall be maintained. Portions of the structureClosed that are torn, broken, dented, or otherwise damaged shall be repaired or replaced.

(4) Signage

(a) A maximum of one signClosed per side is allowed.

(b) Maximum size per signClosed shall be eight square feet.

(c) SignsClosed shall not contain changeable copyClosed.

(d) SignsClosed shall not extend above the roofline of the stand or kiosk.

J. Accessory Structures

Accessory structures shall be subject to the applicable requirements pursuant to paragraph 5.4.1, Accessory Structures, except as follows:

1. Accessory structures in Design Districts shall be located to the rear of the rear building lineClosed of the primary structureClosed(s) and shall be subject to the side and rear yardClosed requirements of those districts.

2. The height of the structureClosed shall not exceed 35 feet and shall not exceed the primary structureClosed in height.

3. The structureClosed shall be compatible with the primary structureClosed in style, materials, roof form, and details.

16.3.2. Structured Parking

The following standards apply to structured parking, either as a stand-alone buildingClosed or as a component of a buildingClosed:

A. Ground Floor

1. Parking shall not be exposed on the ground floorClosed.

2. A frontage type pursuant to paragraph 16.3.1, Frontage and BuildingClosed Types, shall be required along a public right-of-wayClosed or pedestrian mallClosed.

3. Ground floorClosed frontage along a right-of-wayClosed or pedestrian mallClosed shall only be uses (pursuant to paragraph 16.1.3, Uses and DensityClosed) other than parking.

a. The area required for the uses shall have a minimum interior depth of 20 feet and a minimum clear ceiling height of 14 feet.

Commentary: “Clear ceiling height” typically refers to the measured height from floor to ceiling without obstructionsClosed.

b. For structured parking in a completely residential buildingClosed, the ancillary uses typically provided for residents of the developmentClosed, such as but not limited to lobbies, fitness rooms, and leasing officesClosed, shall be considered nonresidential uses.

c. Pedestrian and vehicular access to parking is allowed.

4. No more than 30% of the parking structureClosed materials along the ground floorClosed along all sides shall be exposed concrete.

5. Where non-vehicular vertical circulation elements are located along the street frontageClosed they shall meet either the Storefront or Arcade Frontage Type requirements. Entrances to non-vehicular vertical circulation shall have direct access to and from the street frontageClosed.

6. In order to minimize conflict between pedestrians and vehiclesClosed at pedestrian access points:

a. Pedestrian sight distance triangles for vehiclesClosed exiting the structureClosed measuring 10 feet by 10 feet, or pedestrian warning devices, shall be provided at all vehicular access points.

b. Pedestrian sight triangles shall be measured from the edge of the vehicleClosed travel lane to the edge of the sidewalk or walkway closest to the vehicleClosed.

7. Paragraphs 1 through 3 and 5, above, shall not apply to a frontage along a limited-access right-of-wayClosed or alleyClosed.

B. Architectural Standards

The following architectural standards shall apply to any parking structureClosed façade visible from a right-of-wayClosed:

1. GlazingClosed requirements above the ground floorClosed, per paragraph 16.3.6A, Minimum GlazingClosed, shall not apply.

2. Paragraph 16.3.5, General Facade Requirements, shall apply.

3. The sloping nature of the interior structureClosed shall not be exposed, repeated, or revealed on the exterior façade. Ramping in parking structures shall be internalized or screenedClosed to avoid an angular geometry to the perimeter of the structureClosed.

4. When developedClosed in conjunction with another principal buildingClosed(s), or as a component of a buildingClosed, exterior walls of parking structures shall be finished with the same material to match the architectural design of the principal buildingClosed(s).

5. Exterior walls or decorative screeningClosed measuring at least four feet in height from each floor level shall be required and be 100% opaque in order to screenClosed head or tail lights of vehiclesClosed.

6. All openings shall be screenedClosed with material that is at least 60% opaque, while allowing for required ventilation per the NC BuildingClosed Code. Such screeningClosed can consist of decorative screensClosed, vegetative walls, or window frames, and shall be articulated with additional columns or pilasters.

7. Louvers shall not be used for screeningClosed.

16.3.3. Height

A. Podium Height

The minimum and maximum podiumClosed height is established along the street frontageClosed based on sub-district.

1. All buildings utilizing frontage types, except the ForecourtClosed Frontage Type, shall meet the podiumClosed height within the build-to zoneClosed.

2. Buildings utilizing the ForecourtClosed Frontage Type shall meet the podiumClosed height at the back of the forecourtClosed.

B. Application of Multiple Height Standards

For buildings where multiple height standards apply, each portion of the buildingClosed is allowed to build to the allowable height in the sub-district where that portion of the buildingClosed is located. Height will be computed independently for each portion of the buildingClosed in each sub-district.

C. Sub-District Requirements

1. DD District

a. Unless otherwise specified, the following standards shall apply to all frontage and buildingClosed types:

BuildingClosed Height and Massing

Height ArticulationClosed (Massing)

Optional Corner Tower Elements:

Additional Height above Proposed PodiumClosed Height

DD Sub-DistrictsMinimum/Maximum PodiumClosed HeightMinimum Upper Story Step-BackClosedMaximum BuildingClosed Height without ProvisionsMaximum BuildingClosed Height with Provisions

Core (-C)

30 feet min

75 feet max1

10 feet

300 feet

Unlimited

30 feet

Support 1 (-S1)

30 feet min

75 feet max1

10 feet

100 feet

175 feet

20 feet

Support 2 (-S2)

20 feet min

35 feet max

10 feet3

35 feet2/50 feet

65 feet

12 feet

 1See paragraph (1), below, for additional height allowance

2See paragraph (2), below, for height allowance.

3See paragraph (3), below, for step-back requirements.

 

(1) For the Core and S1 sub-districts, if the adjacentClosed right-of-wayClosed is at least 100 feet wide, then the maximum podiumClosed height shall be 100 feet.

(2) In the S2 sub-district, the maximum buildingClosed height without provisions shall be 35 feet when within 75 feet of non-design district zoning.

(a) Measurement shall be made from the zoning line. Right-of-wayClosed shall be excluded from the 75-foot measurement.

(b) The maximum buildingClosed height can be 50 feet with approval of a minor special use permit pursuant to Sec. 3.9, Special Use Permit.

(3) The upper-story step-back is applied to all storiesClosed that exceed the maximum podiumClosed height.

(a) No step-back is required in the S2 sub-district when utilizing “maximum buildingClosed height without provisions”.

(b) In the S2 sub-district, the minimum upper story step-backClosed or a change in buildingClosed materials at and above the maximum podiumClosed height is required when utilizing the “maximum buildingClosed height with provisions.”

(4) The Monumental BuildingClosed Type shall be exempt from height articulationClosed requirements.

(5) Incidental and Accessory StructureClosed BuildingClosed Types shall be exempt from the requirements in paragraph a, above.

(6) Balconies and bay windows that extend out from the buildingClosed are not required to meet step-back requirements.

b. Corner Tower Elements

When provided, a corner tower elementClosed shall be limited in width and depth to a maximum of 25% of the buildingClosed frontage.

c. Maximum Building Height with Provisions

The maximum buildingClosed height with provisions, as allowed in paragraph 16.3.3C.1.a, above, can be achieved by providing provisions for the developmentClosed site pursuant to the table below.

(1) Project provisions required elsewhere in this Ordinance or in the City Code shall not qualify as amenities to achieve the height.

(2) The additional height shall be applied to the overall buildingClosed height, and not to the maximum podiumClosed height.

(3) The additional height allowed is subject to the upper story step-backClosed requirements.

(4) Eligible Provisions

Project Provisions

Standards

Additional Height Allowance

Core

Support 1

Support 2

Historic Preservation

Undertake or incorporate the adaptive reuse of an existing historic structureClosed, including local landmarks, National Register properties, contributing buildings in a historic district, or structures which the applicable governing body has determined to be of local historic significance. The renovation can add onto the structureClosed but shall not demolish any historically significant portion of the structureClosed.

45 feet

30 feet

Affordable Housing

At least 15% of the units in a project meet the definition of an affordable housing dwelling unitClosed.

60 feet

45 feet

Due to varying base maximum heights, see “Maximum BuildingClosed Height with Provisions” in paragraph 16.3.3C.1.a for the ultimate height allowance with this provision

Green RoofClosed

Provide a green roofClosed in accordance with City of Durham Public Works Standards, equivalent to at least 50% of the buildingClosed footprint area.

15 feet

15 feet

StormwaterClosed Capture and Reuse

Provide cistern(s) to collect stormwaterClosed from on-site rooftop impervious surfacesClosed with a minimum volume to accommodate the first one inch of rainfall. To receive this credit the runoffClosed must be captured and used on site for the purposes of flushing toilets or irrigation.

15 feet

15 feet

Water Reclamation

Water reclamation and reuse from mechanical equipment or other on-site sources 

15 feet

15 feet

Materials and ArticulationClosed

Façade projections of at least 3 feet or recesses of at least 5 feet in depth covering at least 40% of the podiumClosed façade on all sides, and a minimum of 30% of each buildingClosed façade the use of metal, brick, terracotta, stone, or other masonry materials.

30 feet

30 feet

Public ParkingClosed

1. Provide parking within the developmentClosed dedicatedClosed for public use. The public parkingClosed provided shall not count towards maximum parking allowed for the project.

a. The public parkingClosed shall be in structured parking.

b. The amount of parking shall be at least 50 spaces, or an amount equal to at least 20% of the minimum amount of parking required for the developmentClosed, whichever is greater.

2. At least three of the public parkingClosed spaces shall be electric vehicleClosed charging spaces.

3. Public parkingClosed spaces shall be accessible 24 hours/day and under control of the City through an operational agreement with the City. The City can, at its discretion, limit the hours of accessibility.

30 feet

30 feet

 

2. CD District

a. Unless otherwise specified, the following standards shall apply to all frontage and buildingClosed types:

BuildingClosed Height and Massing

CD Sub-Districts Height ArticulationClosed (Massing)Maximum BuildingClosed Height without ProvisionsMaximum BuildingClosed Height with Provisions

Optional Corner Tower Elements:

Additional Height above Proposed PodiumClosed Height

 Minimum/Maximum PodiumClosed HeightMinimum Upper Story Step-BackClosed
Core (-C)30 feet min75 feet max110 feet90 feet145 feet30 feet
Support 1 (-S1)30 feet min50 feet max10 feet60 feet90 feet15 feet
Support 2 (-S2)20 feet min45 feet max10 feet435 feet2 / 45 feet60 feet15 feet
Pedestrian Business (-P(N))20 feet min35 feet max10 feet40 feet / 55 feet3

1 See paragraph (1) for additional height allowance.

2 See paragraph (2), below, for height allowance.

3 Height restrictions are located in paragraph 16.3.3C.2, Pedestrian Business Sub-District (Ninth Street) (CD-P(N)) Height.

4 See paragraph (3), below, for step-back requirements.

 

(1) For Core, if the adjacentClosed right-of-wayClosed is at least 90 feet wide, then the maximum podiumClosed height shall be 90 feet.

(2) In the S2 sub-district, the “maximum buildingClosed height without provisions” shall be 35 feet when within 75 feet of non-design district zoning.

(a) Measurement shall be made from the zoning line. Right-of-wayClosed shall be excluded from the 75-foot measurement.

(b) The maximum buildingClosed height can be 45 feet with approval of a minor special use permit pursuant to Sec. 3.9, Special Use Permit.

(3) The upper-story step-back is applied to all storiesClosed that exceed the maximum podiumClosed height.

(a) No step-back is required in the S2 sub-district when utilizing the “maximum buildingClosed height without provisions”.

(b) In the S2 sub-district, the minimum upper story step-backClosed or a change in buildingClosed materials at and above the maximum podiumClosed height is required when utilizing the “maximum buildingClosed height with provisions.”

(4) The Monumental BuildingClosed Type shall be exempt from height articulationClosed requirements.

(5) Incidental and Accessory StructureClosed BuildingClosed Types shall be exempt from the requirements in paragraph a, above.

(6) Balconies and bay windows that extend out from the buildingClosed are not required to meet step-back requirements.

b. Corner Tower Elements

When provided, all corner tower elements on a single buildingClosed shall have a combined maximum width and depth of 20% of the buildingClosed frontage or 30 feet, whichever is less.

c. Pedestrian Business Sub-District (Ninth Street) (CD-P(N)) Height

For properties within the CD-P(N) the following height restrictions shall apply:

(1) East Side of Ninth Street

BuildingClosed height shall not exceed 40 feet and shall not exceed three storiesClosed.

(2) West Side of Ninth Street

(a) Along the western Ninth Street frontageClosed, buildingClosed height shall not exceed 55 feet and shall not exceed four storiesClosed in the area extending 230 feet in from the north and south sub-district boundaries in accordance with the figure below.

 

(b) If not governed by paragraph (a) above, buildingClosed height shall not exceed 40 feet in height and shall not exceed three storiesClosed.

d. Maximum Height with Provisions

The maximum buildingClosed height with provisions as allowed in the table in paragraph 16.3.3C.2.a, above, can be obtained only in the Core, S1, and S2 sub-districts with a provision as indicated below.

(1) A provision cannot qualify for additional height if it is a requirement elsewhere in this Ordinance or in any other code or regulation.

(2) The Affordable Housing Provision can apply to additional height and additional densityClosed pursuant to paragraph 16.1.3E.2.d, Additional DensityClosed.

(3) The additional height shall be applied to the overall buildingClosed height, and not to the maximum podiumClosed height. The required upper-story step-back shall also apply.

(4) Eligible Provisions

The following shall be the eligible provisions that qualify for additional height:

Project ProvisionsStandardsAdditional Height Allowance
CoreSupport 1Support 2

Affordable Housing

The project implements Sec. 6.6, Affordable Housing Bonus.

45 feet

30 feet

Due to varying base maximum heights, see “Maximum BuildingClosed Height with Provisions” in paragraph 16.3.3C.2.a for ultimate height allowance with this provision

Historic Preservation

Undertake or incorporate the adaptive reuse of an existing historic structureClosed, including local landmarks, National Register properties, contributing buildings in a historic district, or structures which the applicable governing body has determined to be of local historic significance. The renovation can add onto the structureClosed but shall not demolish any historically significant portion of the structureClosed.

45 feet

30 feet

Water Reclamation

Water reclamation and reuse from mechanical equipment or other on-site sources 

15 feet

15 feet

Materials and ArticulationClosed

Façade projections of at least 3 feet or recesses of at least 5 feet in depth covering at least 40% of the podiumClosed façade, and a minimum of 30% of each buildingClosed façade the use of brick, terracotta, or stone materials.

30 feet

30 feet

Public ParkingClosed

1. Provide parking within the developmentClosed dedicatedClosed for public use. The public parkingClosed provided shall not count towards maximum parking allowed for the project.

a. The public parkingClosed shall be in structured parking.

b. The amount of parking shall be at least 50 spaces, or an amount equal to at least 20% of the minimum amount of parking required for the developmentClosed, whichever is greater.

2. At least three of the public parkingClosed spaces shall be electric vehicleClosed charging spaces.

3. Public parkingClosed spaces shall be accessible 24 hours/day and under control of the City through an operational agreement with the City. The City can, at its discretion, limit the hours of accessibility.

30 feet

15 feet

 

3. CSD District

a. Unless otherwise specified, the following standards shall apply to all frontage and buildingClosed types:

BuildingClosed Height and Massing

CSD Sub-Districts

 

Height ArticulationClosed (Massing)Residential2 Maximum BuildingClosed Height without Affordable Housing Bonus

 

Nonresidential Maximum BuildingClosed Height without Affordable Housing Bonus

 

Maximum BuildingClosed Height with Affordable Housing Bonus3

 

Optional Corner Tower Elements: Additional Height above Proposed PodiumClosed Height

 

Minimum/Maximum PodiumClosed HeightMinimum Upper Story Step-BackClosed

Core
(-C)

30 feet min

75 feet max1

20 feet

145 feet

300 feet

300 feet

30 feet

Support 1
(-S1)

25 feet min

75 feet max

20 feet

45 feet

90 feet

145 feet

15 feet

Support 2
(-S2)

20 feet min

35 feet max

10 feet4

35 feet

60 feet

60 feet

15 feet

1 See paragraph (1) below for additional height allowance.

2 Mixed useClosed developmentsClosed with a residential component are considered residential for establishing maximum allowable height.

3 See paragraph c below for affordable housing height bonus requirements.

4 See paragraph (2) below for step-back requirements.

(1) For Core, if the adjacentClosed right-of-wayClosed is at least 90 feet wide, then the maximum podiumClosed height shall be 90 feet.

(2) The upper-story step-back is applied to all storiesClosed that exceed the maximum podiumClosed height.

(a) The step-back is required in the S2 sub-district only if the affordable housing bonus is utilized.

(b) In the S2 sub-district, the step-back can be replaced with a change in buildingClosed materials at and above the maximum podiumClosed height.

(3) The Monumental BuildingClosed Type shall be exempt from height articulationClosed requirements.

(4) Incidental and Accessory StructureClosed BuildingClosed Types shall be exempt from the requirements in paragraph a, above.

(5) Balconies and bay windows that extend out from the buildingClosed are not required to meet step-back requirements.

(6) The maximum height allowances for congregate and independent living facilitiesClosed shall be the “Nonresidential Maximum BuildingClosed Height without Affordable Housing Bonus” category.

b. Corner Tower Elements

When provided, all corner tower elements on a single buildingClosed shall have a combined maximum width and depth of 20% of the buildingClosed frontage or 30 feet, whichever is less.

c. Maximum Height with Affordable Housing Bonus

(1) Within any sub-district, provided that at least 15% of the total number of dwelling unitsClosed in the project qualify as affordable housing dwelling unitsClosed, the Maximum BuildingClosed Height with Affordable Housing Bonus shall apply.

(2) Only projects with a minimum of 15 dwelling unitsClosed, or projects adding at least 15 dwelling unitsClosed to an existing developmentClosed, shall be eligible for the affordable housing densityClosed bonuses.

(3) Requirements pursuant to paragraph 6.6.1, General Requirements, shall apply.

16.3.4. Building Access

A. General Access Requirement

Except along a freewayClosed or similar NCDOT right-of-wayClosed, each street frontageClosed facade or pedestrian mallClosed facade shall have at least one entrance with direct access to the street or pedestrian mallClosed.

B. Primary or Main Entrance

1. A primary entrance shall be on a street frontageClosed façade and shall:

a. Be within 30 vertical inches of the street gradeClosed;

b. Face the street unless otherwise allowed; and

c. Have direct access to the street.

2. Primary entrances shall be:

a. Clearly defined and articulated by decorative surrounds, thresholds, pediments, distinctive lighting, lintels, sidelights, canopies, or other distinctive architectural elements which frame and identify the entrance; and

b. Larger in scale than secondary entrances.

3. Entries from parking areas shall be secondary in nature and articulationClosed.

C. Exemptions

Exemptions from paragraph B, Primary or Main EntranceClosed, above, are as follows:

1. Entrances to the Courtyard and ForecourtClosed Frontage Types, per paragraph 16.3.1F, Courtyard Frontage Type, and paragraph 16.3.1G, ForecourtClosed Frontage Type.

2. Existing entrances designed and used as the primary entrance for the buildingClosed, as long as access to the street is maintained.

3. The standards shall not apply to frontage along a freewayClosed or other similar NCDOT right-of-wayClosed.

16.3.5. General Facade Requirements

Facades of buildings shall be designed as follows. Portions of buildingClosed façades used as retaining walls shall also be subject to these standards.

A. Variation of Exterior Materials

1. Changes in exterior buildingClosed materials shall only occur as defined lines, edges, or a minimum three-inch change of plane.

2. When vertical changes in exterior buildingClosed materials occur at a corner, they shall only occur at inside corners of the buildingClosed façade.

3. Incidental changes in material, such as but not limited to quoins or keystones, are allowed.

    

B. Building Length

In CD-P and CD-S2, the maximum buildingClosed length along each street frontageClosed shall be 400 feet. Otherwise, the maximum length shall be 500 feet. The measurement of buildingClosed length shall exclude courtyards compliant with dimensional standards of the Courtyard Frontage Type.

C. Podium Vertical Articulation (Divisions)

1. Vertical divisions shall be articulated for the entire height of the podiumClosed.

2. BuildingClosed podiumsClosed shall have multiple vertical divisions articulated using at least one of the following methods:

a. A change in buildingClosed materials, textures, or material coloring (paint color shall not qualify); or

b. A change of plane of at least six inches.

3. For buildings in the CD-P(N) sub-district, the rhythm established by typical widths of the traditional commercial structures on the east side of Ninth Street between Perry Street and West Markham Avenue shall be maintained.

D. Podium Horizontal Articulation Standards (Layers)

1. Extent of Articulation

a. For buildings with a podiumClosed of fewer than four storiesClosed, the building baseClosed shall be less than 50% of the podiumClosed height.

b. For buildings with a podiumClosed of four or more storiesClosed, the building baseClosed shall extend through the top of the first or second storyClosed.

2. Visual Distinction

a. The building baseClosed shall appear visually distinct from the upper storiesClosed of the building podiumClosed, through the use of the following:

(1) A change in buildingClosed material type, scale, or finish; and

(2) A change in window style.

b. The top of the podiumClosed shall be articulated with discernible cornice lines, parapets and/or fasciae that create three-dimensional relief or reveal.

c. The building baseClosed may vary in height as long as it complies with paragraph 1, above.

d. A maximum of 30% of a façade width can contain a visually distinct and uniform design extending from the base through the upper levels of the podiumClosed.

E. Corner Facades

1. Buildings with multiple street frontagesClosed shall be designed with all street-facing façades having similar architectural expression and articulationClosed.

2. Any corner tower elementClosed shall wrap both sides of the corner and be articulated as a distinct vertical element. This element shall not appear merely as a coplanar extension of the main façade.

16.3.6. Glazing Requirements

A. Minimum Glazing

1. Facades requiring a frontage type, and frontage along FreewaysClosed or other similar NCDOT right-of-wayClosed, shall provide glazedClosed window or door openings at the following minimum percentages:

 

Level Category

GlazingClosed Required

GlazingClosed for Portion with 4% Slope or Greater 1

At Ground FloorClosed

Storefront and Arcade Frontage Types

65%

50%

ForecourtClosed Frontage Type

50%

50%

Monumental BuildingClosed Type

30%

25%

Courtyard Frontage Type

30%

30%

Frontage along FreewaysClosed or other similar NCDOT right-of-wayClosed

50%

50%

PodiumClosed Levels above Ground FloorClosed

25%

25%

All Levels above the PodiumClosed

20%

20%

Exceptions to the above Criteria:

Overnight Accommodations at Ground FloorClosed2

30%

25%

Residential at Ground FloorClosed

30%

25%

Structured Parking

See paragraph 16.3.2

1 Slope is measured parallel to the street.

2 This percentage shall apply only to the façades for the guest roomsClosed at the ground floorClosed. Facades for lobbies, restaurantsClosed, meeting rooms, or other accessory areas shall utilize the applicable standard.

 

2. Calculation Method

a. Each level category shall be calculated independently per façade, and each building elevationClosed shall comply with each glazingClosed requirement unless exempted or other requirement is indicated.

Example:  A buildingClosed utilizing the storefront frontage type shall demonstrate the glazingClosed at the ground floorClosed is at least 65% of the façade of that level, podiumClosed levels above street shall have a glazingClosed of 25% of the aggregate of those levels, and 20% glazingClosed of the aggregate of all levels above the podiumClosed.

b. Calculations shall be made from the finished floor elevation to finished floor elevation or finished roof surface, as applicable.

     

3. Exemptions and Exclusions

a. Courtyards with façades completely internal to the site and not applicable to the standards for the Courtyard Frontage Type are exempt from minimum glazingClosed requirements.

b. The area of any exterior air intake louvers or vents used for mechanical equipment or HVAC systems can be subtracted from the total wall area when calculating glazingClosed requirements.

c. Parapets, foundation walls, and at- or below-grade retaining walls, where there is no habitable space behind the walls, shall be excluded from glazingClosed calculations.

B. Window Design Standards

All glazingClosed used to meet requirements shall comply with the following standards to ensure visual interest:

1. Ground floorClosed glazingClosed shall have transparent glass. Mirrored and frosted glass shall not be used.

2. Ground floorClosed glazingClosed shall be maintained free of internal obstructionsClosed or partitions to a minimum depth of three feet.

3. Ground floorClosed glazingClosed shall not be obscured by materials applied to the inside of the glass including, but not limited to: paper, and paint. SignsClosed allowed pursuant to Article 11, Sign Standards, are exempt from this requirement. Windows can be covered only when there is an active building permitClosed.

4. Windows within the podiumClosed shall not contain grills interior to the glass.

5. BarsClosed or other obstructionsClosed shall not be mounted onto windows.

6. In the CD-P(N) sub-district, upper-floor windows greater than 10 square feet in area shall be divided by a minimum of one muntin, mullion, or sash.

16.4.1. Applicability

A. Unless otherwise indicated, the following improvements shall be provided within the right-of-wayClosed along all public and private streets, and within pedestrian mallsClosed:

B. Article 12, Infrastructure and Public Improvements, and Article 13, Additional Requirements for Subdivisions, shall apply except as modified within this section.

C. Exemptions

The following projects shall be exempt from providing sidewalk or streetscapeClosed amenities:

1. Projects that only require architectural review;

2. Improvements that consist only of unmanned facilities of less than 1,000 square feet, such as storage rooms, mechanical equipment, or coolers;

3. Improvements that consist only of four or fewer additional motor vehicleClosed parking spacesClosed;

4. Improvements that consist only of less than 1,000 square feet of buildingClosed area; or

5. Improvements are documented to solely bring existing facilities up to current health, safety, or buildingClosed code requirements.

 

16.4.2. Streetscape

A. Sidewalk Standards

1. Sidewalk shall be provided as follows. When multiple methods are shown as allowed, any allowable method can be used.

 

Sidewalk from buildingClosed face to back-of-curb

Sidewalk from buildingClosed face to three-foot landscape strip

Sidewalk with a Landscape StormwaterClosed Control Measure (see 16.4.2A.2)

DD-C

-S1

-S2

CD-C

-S1

-S2

-P(N)

CSD-C

-S1

-S2

2. ForecourtClosed Frontage Type and Monumental BuildingClosed Type

a. For the ForecourtClosed Frontage Type, sidewalk shall be measured to the frontage of the forecourtClosed and not the buildingClosed itself.

b. For the Monumental BuildingClosed Type, the sidewalk shall be a minimum of 12 feet wide, and a landscape strip with a minimum width of three feet can be provided against the back-of curb.

3. For additions or modifications to existing structures on sites with existing sidewalk, sidewalk along all frontages shall be widened to at least 12 feet, unless:

a. Exempt per paragraph 16.4.1C, Exemptions;

b. A wider sidewalk would require the removal of a major specimen tree; or

c. Existing conditionsClosed prohibit the widening of the sidewalk.

4. Existing sidewalk width shall not be reduced.

5. For projects that propose removal of the existing structures for construction of new structures, current standards shall apply.

6. Street trees are allowed in the sidewalk area, but shall not conflict with the required clear zone. Pit openings shall not encroachClosed into the required clear zone unless a suspended sidewalk system is utilized.

7. Parking areas, loading zones, bus and valet pull-offs, and other similar features shall not utilize, or encroachClosed into, the required sidewalk area.

8. All sidewalk area, whether within public right-of-wayClosed or on private property with an easementClosed, shall meet ADA accessibility standards.

9. Payment-in-lieu shall not be an option to comply with sidewalk requirements.

10. For frontage along freewaysClosed and other similar right-of-wayClosed where the build-to lineClosed is measured from the right-of-wayClosed, the following standards shall apply:

a. No sidewalk within right-of-wayClosed is required; however, on-site sidewalk shall be required and shall connect to any other existing or proposed sidewalk in right-of-wayClosed or on-site. Connections shall also be made to on-site buildings and parking areas.

b. The minimum width shall be six feet.

B. Sidewalk Clear Zone

1. Within the required sidewalk, a continuous, unobstructed area or “clear zone” shall be maintained at all points along the sidewalk as follows:

 

Required Clear Zone

DD

5 feet

CD

5 feet

CSD

8 feet

 

Pedestrian mallsClosed shall maintain clear zones per paragraph 16.4.3C, Pedestrian MallClosed Standards.

2. The clear zone shall parallel the predominant buildingClosed face, with a maximum variation of 15 degrees. A greater degree of variation is allowed only to the minimum extent necessary to accommodate existing obstructionsClosed or other obstructionsClosed required for utilities, street trees, or other streetscapeClosed amenities.

3. Bus Stops

Bus stop clear zones shall be established pursuant to the requirements of the applicable transit agencyClosed. No landscape strip shall be required through the clear zone.

C. Accessibility

1. Sidewalk Accessibility Ramps

Directional sidewalk accessibility ramps shall be provided at street intersections to direct users across crosswalks rather than diagonally into intersections.

a. Non-directional ramps shall not be permitted.

b. Pedestrian Rights-of-Way Accessibility Guidelines (PROWAG) shall be utilized to comply with this standard, except that ramps shall be perpendicular to the right-of-wayClosed, as shown below*.

* Diagrams are per PROWAG Chapter R3, Technical Requirements. Specifications shown are illustrative. All construction shall be to the specifications of the City Public Works Department.

c. Alternative methods found in PROWAG are allowed only if existing conditionsClosed prevent the use of ramps described in paragraph b, above.

2. Driveway Aprons/Curb-Cuts

a. DrivewayClosed aprons shall be provided so that sidewalks remain continuous and level for the width of the clear zone.

b. Obsolete/unused drivewayClosed aprons and curb-cuts shall be removed.

D. Required Streetscape Amenities

1. Amenities shall be provided within the streetscapeClosed as indicated in the table below and shall be calculated by rounding to the nearest linear foot or receptacle. These standards shall apply whether the amenity is required or provided beyond minimum requirements.

Sub-District

Required Amenity Standards

Seating

Solid WasteClosed Receptacles (trash and recycling bin pair)

Decorative Street Lights

Street Trees

Bus SheltersClosed

Bicycle Racks

Core (-C)

One linear foot per 15 linear feet of street frontageClosed

One per 200 linear feet of street frontageClosed

When existing street lights are replaced or new street lights are installed, they shall meet the specifications in paragraph 16.4.2F, Construction Specifications.

Pursuant to paragraph 16.4.2E, Street Trees.

See planting guidelines and details in the Landscape Manual.

Required for developmentClosed projects consisting of at least 80,000 square feet of buildingClosed, adjacentClosed to existing or proposed bus stops. Constructions specifications shall be in accordance to the applicable mass transit entity.

As required pursuant to Article 10, Parking and Loading.

Support 1 (-S1)

One linear foot per 20 linear feet of street frontageClosed

One per 250 linear feet of street frontageClosed

Support 2 (-S2)

One linear foot per 25 linear feet of street frontageClosed

One per 300 linear feet of street frontageClosed

Pedestrian Business
(-P(N))

One linear foot per 15 linear feet of street frontageClosed

One per 250 linear feet of street frontageClosed

 

2. Existing streetscapeClosed amenities along the street frontageClosed of the developmentClosed can count towards required amenities so long as they meet all dimensional requirements.

3. Seating shall be 18 to 30 inches high and a minimum of 15 inches deep. Seating that accommodates users on both sides shall be at least 30 inches deep.

4. Ledges and walls can count as seating provided that they meet the dimensional requirements of this section.

5. StreetscapeClosed amenities shall be distributed along the full length of the street frontageClosed rather than in one location.

6. Required streetscapeClosed amenities shall be provided within the right-of-wayClosed or on private property within five feet of the property line, provided that they are publicly accessible.

Commentary: Sight distance triangles required within this Ordinance must be maintained.

7. For projects with multiple street frontagesClosed, each street frontageClosed shall have a discrete calculation and requirement.

8. Setbacks

Along streets with on-street parking, streetscapeClosed furnishings shall be located a minimum of 24 inches from the back-of-curb.

9. StreetscapeClosed furnishings shall be anchored to the pavement.

E. Street Trees

1. Landscaping and installation standards within Article 9, Landscaping and Buffering, shall apply unless otherwise modified below.

2. Standards
a. Number of Trees

(1) One tree for every 40 feet of street frontageClosed along existing and proposed rights-of-way (not including alleysClosed), private street easementsClosed, and pedestrian mallsClosed. If understory trees are planted, then the average shall be at least one understory street tree for every 30 feet.

(2) For street frontageClosed along a freewayClosed or other similar NCDOT right-of-wayClosed, the requirement shall be one tree for every 20 feet of street frontageClosed.

b. Maximum Separation

Trees shall maintain a maximum separation of 100 feet, measured between the centerline of each trunk. If existing obstructionsClosed, access points, or sight distance triangles prevent compliance with the maximum separation requirement, the separation can exceed the maximum only to the extent necessary to avoid the obstructionClosed, access point, or sight distance triangle.

c. Location

(1) Street trees shall be located in the right-of-wayClosed or street easementClosed. The Public Works Director in consultation with the City Transportation Director or City Urban ForestryClosed Division, as applicable, or NCDOT, as appropriate, may require an alternate location.

(2) Trees shall be placed along the curb side of the sidewalk. Along streets with on-street parking, street trees shall be set back at least 24 inches from the back-of-curb, measured from the centerline of the trunk.

(3) Unless utilizing a suspended sidewalk system, street tree pit openings shall not encroachClosed into required sidewalk or pedestrian mallClosed clear zones.

d. Suspended Sidewalk System

A suspended sidewalk system shall be required in the Core and S1 sub-districts of the DD and CD Districts.

3. Alternative Street Tree Requirement

Commentary: Street trees provide core functions within the urban environment. Street trees provide shade, aesthetics, and help distinguish the pedestrian way from travel lanes. The alternatives are intended to provide at least two of these functions when such alternatives are allowed. EncroachmentClosed agreements with the City or NCDOT, as applicable, may be required.

a. Applicability

(1) If an existing easementClosed prohibits the placement of street trees in the prescribed location per paragraph E2, above, an alternative can be provided in lieu of the street tree requirement.

(2) Except in the CSD District, where developmentClosed incorporates existing buildings and the distance from the back-of-curb to the buildingClosed face is less than 10 feet, an alternative can be provided in lieu of the street tree requirement.

(3) Street tree alternatives shall not be used for pedestrian mallsClosed.

b. Alternatives

Street tree alternatives specified below shall be used, individually or in combination, and shall comply with the associated standards.

(1) Spacing and location requirements shall be consistent with those required for street trees.

(2) Maintenance of alternatives shall be the responsibility of the property ownerClosed(s) of the developmentClosed site.

(3) Table of Alternatives

Alternative

Standards

Public ArtClosed

Shall provide a minimum of 100 square feet of public artClosed along the street frontageClosed for each required street tree. Additionally:

1. Public artClosed shall be permanent and include a maintenance agreement.

2. All-weather materials shall be used.

3. Public artClosed shall not include advertisements, but can include a placard indicating the name of the artwork, the name of the artist, and information about the artwork.

4. Public artwork shall require a recommendation of approval from the Public ArtClosed Committee of the Cultural Advisory Board.

Landscape Planters

Shall provide a minimum of two landscape planters with a planting area of at least five square feet each in-lieu of each required street tree. Additionally:

1. Planters must be continually planted and maintained.

2. Planters shall be above-ground constructed of durable all-weather material such as fiberglass, metal, stone, or a cementitious material.

Vegetative ScreenClosed and Awning or CanopyClosed

1. The vegetative screenClosed shall be a minimum of 100 square feet along the street frontageClosed in-lieu of each required street tree. Additionally:

a. The screenClosed shall be composed of landscape material with a minimum of 50% evergreen.

b. The screenClosed shall be at least 10 feet high.

2. The awning/canopyClosed shall be a minimum of 10 linear feet along the street frontageClosed in-lieu of each required street tree and shall be a minimum of 5 feet in depth. The awning shall be kept in good repair.

 

F. Construction Specifications

1. Sidewalks (DD only)

a. Sidewalks shall be constructed of natural concrete with red brick pavers installed along the back-of-curb in a double row stacked sailor course. Corners can be a solid field or herring bone brick pattern with a single sailor border.

b. Where a landscape strip is provided, the pavers shall be provided between the concrete sidewalk and landscape strip.

2. Suspended Sidewalks

When a suspended sidewalk system is utilized, concrete or brick pavers shall be used, and break-away collars to expand the pit opening as the tree grows shall be used.

3. Benches

Benches shall be DuMor Bench 92 or Dumor Bench 58, or equal in design and performance, in black finish.

4. Trash/Recycling Receptacles

a. Trash receptacles shall be 32-gallon DuMor Receptacle 102 or equal in design and performance in black finish.

b. Recycling receptacles shall be the same as used for trash except a recycling lid (DuMor RC lid/cover in blue, or equal in design and performance) shall be provided.

5. Street Lights, Mast Arms, and Other Utility Poles
a. Downtown Design District

(1) Street lights shall be Memphis teardrop luminaire on the davit-arm, mounted on the North Yorkshire pole all by Holophane or equal, shall be utilized. The City of Durham’s installation specifications shall be utilized.

(2) Mast arms shall consist of a smooth signal arm mounted on a 16-fluted pole with the Huntington base by Valmont or equal. The Memphis teardrop luminaire on the Atlanta cross-arm, both by Holophane or equal, shall be used atop the mast arm’s pole. The mast arm specification, including pole and luminaire height and arm length, should be confirmed through the City of Durham’s Transportation Department.

(3) Other utility poles shall be a consistent design and material with street lights.

b. Compact Design and Compact Suburban Design Districts

Street lights, mast arms, and other utility poles shall use a metal product approved by the City Transportation Department or NCDOT, as applicable.

6. Bicycle Racks

For bicycle rack specifications, see paragraph 10.4.4E, Standards for Design Districts.

G. Alternative Streetscape Plan (ASP)

1. General

a. Alternative streetscapeClosed requirements to the standard requirements of this section can be established within an approved alternative streetscapeClosed plan (ASP).

b. Amenities that are on private property and are not required for satisfying streetscapeClosed standards are not subject to this plan.

c. Plan applications and any amendments shall be signedClosed by all property ownersClosed, or legally designated representatives, within the plan area.

2. Applicability

a. A plan can be approved for an area consisting of at least 10 contiguous acres. Additions to a plan area can be made at any increment.

(1) Right-of-wayClosed shall not be included within the area calculation.

(2) For the purposes of this paragraph, properties shall be considered contiguous if right-of-wayClosed is intervening.

b. StreetscapesClosed internal to the plan area shall include entire blockClosed faces, and blockClosed faces shall be contiguous, in order to avoid gaps and “doughnut holes” within the plan area.

c. Where the perimeter boundary of the plan area would not include a portion of a block faceClosed, or an entire block faceClosed, of property not party to the plan:

(1) The streetscapeClosed shall be included in order to encompass the block faceClosed, or to create contiguous blockClosed faces, to avoid gaps between blockClosed faces and provide continuity along the streetscapeClosed.

(2) The streetscapeClosed receptacles and seating consistent with the plan and other applicable ordinance requirements shall be provided along the streetscapesClosed sections not included in the plan, concurrent with the installation of furnishings within the portion of the block faceClosed within the plan area or on a neighboring block faceClosed, as applicable.

3. Approval

An ASP shall be approved through the site planClosed approval process, either as part of the first site planClosed for the plan area or as a separate plan. In either case, the ASP shall be applicable to all developmentClosed and plan approvals within the plan area.

4. Standards

The following shall consist of the allowable alternative amenities and associated standards for an ASP:

a. General

(1) The ASP shall specify alternative colors(s), design(s), and materials of each alternative streetscapeClosed amenity or sidewalk standard identified in the plan.

(2) Amenity design, color, and other construction specifications shall be provided within the plan.

(3) Unless specifically indicated otherwise within the standards below, the standard streetscapeClosed requirements and any other applicable Ordinance requirements shall apply.

b. Signs

SignsClosed shall be allowed on amenities in the right-of-wayClosed in accordance with paragraph 11.5.1E. Additionally:

(a) Only one signClosed per amenity shall be allowed; and

(b) The maximum size shall be 36 square inches.

c. Sidewalk

(1) A landscape area between the buildingClosed and sidewalk, with a minimum sidewalk width of 12 feet from back of curb, is allowed if the landscape area functions as a stormwaterClosed BMP and complies with the City Code StormwaterClosed Performance Standards for DevelopmentClosed and is approved by the City Public Works Department.

(2) Lighting within sidewalk pavement shall be allowed.

d. Seating

An alternative bench design from paragraph 16.4.2F.3, Benches, is allowed. Materials shall consist of concrete, metal, and/or wood composite.

e. Solid Waste Receptacles

An alternative design for trash and recycling receptacles from paragraph 16.4.2F.4, Trash/Recycling Receptacles, is allowed subject to the following:

(1) The receptacles shall be of metal construction.

(2) The receptacles shall have openings that are covered by a horizontal surface. No uncoveredClosed openings shall be allowed on top of the receptacles.

(3) Trash and recycling receptacles shall be distinguished by color and signage indicating the type of receptacle.

f. Decorative Street Lights

Alternative street lights to those of paragraph 16.4.2F.5, Street Lights and Mast Arms, are allowed within pedestrian mallsClosed if they are a minimum of 10 feet from the public right-of-wayClosed.

g. Street Trees

(1) An alternative to the suspended sidewalk system required pursuant to paragraph 16.4.2E.2.d, Suspended Sidewalk System, is allowed if approved with a minor special use permit pursuant to Sec. 3.9, Special Use Permit.

(2) In addition to the review factors in paragraph 3.9.8B, Review Factors, the approving authority shall also find that the alternative provides equal or better stormwaterClosed treatment and overall design functionality, including but not limited to supporting pedestrian movement and minimizing impact upon root systems, to that of suspended sidewalk systems designed pursuant to paragraph 16.4.2F.2, Suspended Sidewalks.

h. Bicycle Racks

An alternative ground-mounted bicycle rack from the required rack pursuant to paragraph 10.4.4E, Standards for Design Districts, is allowed.

5. Locations

Amenity locations shall be specified on the plan.

6. Servicing, Maintenance, and Replacement

a. All maintenance, servicing, replacement, and modification of location of alternative streetscapeClosed amenities shall be the sole responsibility of the property ownersClosed and their successors, including due to any governmental action or work that impacts the amenity.

b. For the purposes of this alternative streetscapeClosed plan, a property ownersClosed’ association shall be legally established when the alternative streetscapeClosed plan will be applied to more than one parcelClosed.

c. A legally binding agreement with the City, reviewed and approved by the City Attorney’s OfficeClosed and the Public Works Department, shall be in place prior to plan approval and shall be attached to the approved plan. The agreement shall include language that indemnifies the City from and against all charges and any other liabilities pertaining to any of the alternative amenities included in the alternative streetscapeClosed plan.

d. The agreement shall be between the City and the property ownerClosed or an ownersClosed association, and their successors.

16.4.3. Streets and Other Rights-of-Way

A. Streets

1. General
a. Dead End Streets

(1) New cul-de-sacsClosed or other dead end streets shall not be permitted.

(2) Existing dead end streets can be maintained, modified, and improved so long as the length of the street is not increased.

b. Public and private streets, including alleysClosed, shall not be gated or otherwise restrict public access.

c. New streets and alleysClosed shall be dedicatedClosed as public right-of-wayClosed. Right-of-wayClosed can be private only if private stormwaterClosed control measures are placed within or underneath the right-of-wayClosed. Per paragraph 12.2.2, Other Forms of Access, private streets shall be constructed to public street standards, and all other requirements of this Article shall apply.

2. New Streets

This section provides standards for new streets within Design Districts, and includes a set of street typologies allowed within Design Districts.

a. The requirements of this section apply whenever a new street is proposed for construction.

b. Sidewalk, street tree, and other streetscapeClosed amenity requirements found elsewhere in this Article shall apply in addition to following street standards:

c. Construction specifications for street typologies within this section, including intersection specifications, shall be reviewed by the City Transportation Department, City Public Works Department, or NCDOT, as applicable; and approved through the City Public Works Department or NCDOT, as applicable.

d. Curb and gutter shall be measured to back-of-curb pursuant to the specifications of the City Public Works Department.

e. Street Types

(1) Primary Street Type

A two-lane street with on-street parking and bicycle lanes. This street type shall be the default street type throughout the district. The Primary Street Type shall be designed as follows:

Component

Required Width

Travel lane

10.5 feet

Parking lane

7.5 feet

Bicycle lane

5 feet (excluding gutter and bufferClosed)

Bicycle/parking bufferClosed

3.5 feet

Curb/gutter section

18 inches

 

(2) Alternate Street Types

(a) Four-Lane Street Type

A four-lane street with a median/turn lane. The Four-Lane Street Type shall be used for streets designated as a major thoroughfare or boulevardClosed in the adopted Comprehensive Transportation Plan, as amended. This street type shall be designed as follows:

 

Component

Required Width

Travel lane

10.5 feet

Median

16 feet with taper for turn lanes

Parking lane

None

Bicycle lane

5 feet (excluding gutter and bufferClosed)

Bicycle/travel lane bufferClosed

2 feet

Curb/gutter section

18 inches

 

(b) Two-Lane Street Type

A two-lane street with limited parking or bike lanes. The Two-Lane Street Type shall be used as a secondary street in the S2 sub-districts. This street type shall be designed as follows:

 

Component

Required Width

Travel lane

10.5 feet

Parking lane

None; or 8 feet on one side

Bicycle lane

None. Shared-lane markings shall be provided

Bicycle/parking bufferClosed

None

Curb/gutter section

18 inches

 

(3) Bicycle Lane and Buffers

Bicycle lanes and buffers shall be designed as follows to City or NCDOT construction specifications, as applicable:

(a) Buffers shall consist of a raised median or delineated with striping and vertical bollards.

(b) Bicycle lanes shall run behind transit stops.

(c) Bicycle lanes shall be painted green at areas of conflict, such as intersections, bicycle boxes, drivewaysClosed, and transit stops, as determined by the City Transportation Department.

f. Intersections

(1) Bicycle lanes shall be carried through an intersection.

(2) If a right-hand turning lane is needed, the movements of automobiles and bicyclists shall be separated through:

(a) Signalization; or

(b) A lateral shift to move cyclists to the left of the vehicleClosed right-turn lane before vehiclesClosed can turn right.

(3) If no right-turn lane is added, the bicycle facility shall bend in, with the shift occurring at minimum 40 feet before the intersection and ending at minimum 20 feet before the intersection.

(4) At intersections with multiple turning options:

(a) For Primary Street Type: A minimum 10-foot bicycle box shall be installed, at minimum four feet from the pedestrian crosswalk and/or stop barClosed. A “NO TURN ON RED” signClosed (MUTCD R10-11) shall be installed. Alternatively, a two-stage turn queue box can be installed in the intersection between the travel lane and bicycle lane.

(b) For Four-Lane Street Type: A two-stage turn queue box shall be installed in the intersection on the side of the bicycle facility away from through traffic.

g. Medians

(1) Landscaping shall be provided for the length of the median except when tapering to accommodate turn lanes. Landscaping shall at a minimum consist of groundcover, tree, and shrub species pursuant to the Durham Landscape Manual for vehicular use areas.

(2) At intersections, a pedestrian/cyclist refuge area shall be provided.

h. Alternative Forms of Compliance

Alternatives to the street design requirements of this section can be approved with a minor special use permit pursuant to Sec. 3.9, Special Use Permit. In addition to the general required findings, the Board of Adjustment shall also find that the alternative design meets or exceeds the multimodal performance and functionality of the street design standards of this section.

3. Existing Streets

Existing streets may remain serving existing developmentClosed in their current configuration; however, they shall not be extended except in conformance with this Article.

4. Street Names

A street name can be established for a drivewayClosed allowed for access for a pedestrian mallClosed under paragraph 16.4.3C, Pedestrian MallClosed Standards. Establishing a name shall not result in circumventing developmentClosed requirements for private streets, sidewalks, street trees, or other items.

5. Street Connectivity Requirements

a. Connectivity shall be defined as the continuation of the traditional grid pattern established by the existing roadClosed network and creation of new blocks according to paragraph 16.4.4, BlockClosed Standards.

b. Rights-of-way shall intersect at right angles, unless otherwise allowed pursuant to design standards maintained by the City Transportation Director, or NCDOT, as applicable.

c. Any new right-of-wayClosed shall continue or connect the existing street grid, unless:

(1) The connection is prohibited by NCDOT; or

(2) The connection would require extension through land permanently protected from developmentClosed, such as a conservation easementClosed, that precludes developmentClosed; or

(3) The connection would require the crossing of an environmentally sensitive area such as a 100-year floodplain, streamClosed bufferClosed, regulated wetlandsClosed, or steep slopes.

d. An existing right-of-wayClosed shall not be permanently closed without providing an alternate form of public access that accomplishes the same or similar connectivity.

B. Alleys

The following standards shall apply to new alleysClosed. Additional standards within this Article applicable to alleysClosed shall apply to new and existing alleysClosed.

1. AlleysClosed shall be paved and proposed only for access to service areasClosed and/or to access no more than 20 parking spacesClosed.

2. AlleysClosed are not required to have a curb or sidewalk.

3. Area outside of travel lanes, but within the easementClosed or right-of-wayClosed, shall be differentiated with a different paving material or design.

4. AlleyClosed design shall not result in a dead end or be designed to prevent emergency vehicular movement.

Component

Required Width

Travel lane

20 feet

Total extent of alleyClosed

24 feet

Parking lane

None

Bicycle lane

None

Bicycle/parking bufferClosed

None

Curb/gutter section

None

 

C. Pedestrian Mall Standards

1. Width

a. Minimum Width. The minimum width of the pedestrian mallClosed shall be 25 feet and the maximum shall be 75 feet.

b. Alternative Width. The maximum allowable width shall be increased to 100‐feet if at least two different amenities from the options below are provided and located within the pedestrian mallClosed area:

(1) A public artClosed feature as approved by the Durham Public ArtClosed Committee.

(2) Seating provided at double the rate found in the public amenities paragraph 16.2.4C.3.

(3) Trees provided at double the rate found in the public amenities paragraph 16.2.4C.3.

2. Enclosure

At least 85% of the length of each side of the mall shall consist of building podiumClosed.

 

3. Frontage and Building Types Applicability

Pedestrian mallsClosed shall be considered “street frontageClosed” for the application of buildingClosed and frontage types. However, a build-to zoneClosed shall not apply.

4. Clear Zones

A clear zone shall be provided along the length of the pedestrian mallClosed. The clear zone shall be:

a. At least 10 feet wide;

b. Free of obstructionsClosed; and

c. Be hardscaped and handicap accessible.

5. Streetscape Amenities

The requirements for streetscapeClosed amenities shall apply, pursuant to paragraph 16.4.2, StreetscapeClosed.

a. Amenities shall be distributed throughout the length of the pedestrian mallClosed.

b. The centerline of the mall shall be used to calculate the minimum amount of each required amenity.

6. Landscaping

A maximum of 50% of the pedestrian mallClosed can be landscaped, consisting of trees, shrubs, and groundcover. The remaining area shall be hardscaped with ADA compliant material.

7. Connectivity

Pedestrian mallsClosed shall extend through a developmentClosed site, beginning and terminating at a public or private street.

Commentary:  A plaza at the intersection of two streets is not a pedestrian mallClosed. The pedestrian mallClosed is meant to act as a linear way to visually subdivide property and provide pedestrian connectivity through a developmentClosed area and/or blockClosed.

8. Access

a. Pedestrian mallsClosed shall not be blocked, gated, or barredClosed in such a manner to prevent 24-hour public access.

b. A public easementClosed for the entire area of any pedestrian mallClosed shall be granted in perpetuity to the City of Durham.

Commentary:  An easementClosed does not necessarily absolve the property ownerClosed of maintenance of the mall.

9. Street Names

Street names can be established for pedestrian mallsClosed pursuant to paragraph 12.3.2, Street Names. Establishments that open onto the pedestrian mallClosed can have addresses on it when a minimum clear zone of 20 feet in width and 13.5 feet in height is provided to accommodate emergency vehiclesClosed.

D. Over-Street Connectors

A major special use permit under Sec 3.9, Special UseClosed Permit, shall be required for all over-street connections over public streets, including but not limited to aerial pedestrian bridges and enclosed buildingClosed areas. In addition to the requirements of Sec 3.9, Special UseClosed Permit, the applicant shall demonstrate that the project’s relationship to the street and street level objectives and activities has been adequately addressed, and the City Council shall approve the permit only if it finds that:

1. The project will not create negative effects on the surrounding properties; and

2. The project will be aesthetically harmonious with or complementary to the surrounding buildings and streetscapeClosed, and will not have a substantial negative impact on downtown views.

E. Temporary Pedestrian Paths and Bus Stops

1. Any existing pedestrian right-of-wayClosed that will be inaccessible for more than seven days shall require approval of a pedestrian traffic control plan as per MUTCD standards. Prior to the path becoming inaccessible, the pedestrian traffic control plan shall be submitted to and approved by the Transportation Director or designee, and NCDOT, as applicable, through the construction drawing approval process. Pedestrian traffic control plans shall include new or temporary pedestrian circulation routes and pedestrian protection measures, as appropriate.

2. Any existing bus stop that will be inaccessible for more than seven days, or any existing bus shelterClosed that will be inaccessible for more than thirty days, shall require approval of an alternate bus stop and/or bus shelterClosed location and accessible path to the bus stop and/or bus shelterClosed, as applicable. Prior to the bus stop and/or bus shelterClosed becoming inaccessible, the alternative shall be submitted to and approved by the Transportation Director or designee, NCDOT, and GoTriangle, as applicable, through the construction drawing approval process.

16.4.4. Block Standards

A. SubdivisionClosed of property greater than two contiguous acres in size within Design Districts shall meet the following blockClosed standards:

1. Each blockClosed shall be a minimum of one acre and a maximum of 3.5 acres in size.

2. A blockClosed that is greater than three and one-half acres but less than five acres in size shall be allowed if a pedestrian mallClosed or an alleyClosed is provided to create de facto blocks that meet the size requirements of this section.

B. A block faceClosed length greater than 600 feet shall require a connection through the blockClosed via an alleyClosed or pedestrian mallClosed.

C. Blocks may exceed the maximum blockClosed size or blockClosed length for the purposes of right-of-wayClosed dedicationClosed for new streets as long as the new blockClosed size and length are in greater conformance with these standards.

D. Lot Standards

1. No minimum lot widthClosed shall apply, unless otherwise specified within the applicable frontage or buildingClosed type standards.

2. Except for townhouseClosed and detached rowhouse lots, every lot shall abut a public street or pedestrian mallClosed.

3. Townhouse and Detached Rowhouse Lots

TownhouseClosed and detached rowhouse lots can abut along a public street or alleyClosed, pedestrian mallClosed, or common access drive serving the townhouseClosed units.